Arbuscular Mycorrhizal Fungi May Mitigate the Influence of a Joint Rise of Temperature and Atmospheric CO2 on Soil Respiration in Grasslands
We investigated the effects of mycorrhizal colonization and future climate on roots and soil respiration (Rsoil) in model grassland ecosystems. We exposed artificial grassland communities on pasteurized soil (no living arbuscular mycorrhizal fungi (AMF) present) and on pasteurized soil subsequently...
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Series: | International Journal of Ecology |
Online Access: | http://dx.doi.org/10.1155/2009/209768 |
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doaj-1fe060961b754d08ae274c2adfe708832020-11-25T01:03:08ZengHindawi LimitedInternational Journal of Ecology1687-97081687-97162009-01-01200910.1155/2009/209768209768Arbuscular Mycorrhizal Fungi May Mitigate the Influence of a Joint Rise of Temperature and Atmospheric CO2 on Soil Respiration in GrasslandsS. Vicca0C. Zavalloni1Y. S. H. Fu2L. Voets3Hervé Dupré de Boulois4S. Declerck5R. Ceulemans6I. Nijs7I. A. Janssens8Research Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, BelgiumResearch Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, BelgiumResearch Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, BelgiumUnité de Microbiologie, Université Catholique de Louvain, Croix du Sud 3, 1348 Louvain-la-Neuve, BelgiumUnité de Microbiologie, Université Catholique de Louvain, Croix du Sud 3, 1348 Louvain-la-Neuve, BelgiumUnité de Microbiologie, Université Catholique de Louvain, Croix du Sud 3, 1348 Louvain-la-Neuve, BelgiumResearch Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, BelgiumResearch Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, BelgiumResearch Group of Plant and Vegetation Ecology, Department of Biology, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, BelgiumWe investigated the effects of mycorrhizal colonization and future climate on roots and soil respiration (Rsoil) in model grassland ecosystems. We exposed artificial grassland communities on pasteurized soil (no living arbuscular mycorrhizal fungi (AMF) present) and on pasteurized soil subsequently inoculated with AMF to ambient conditions and to a combination of elevated CO2 and temperature (future climate scenario). After one growing season, the inoculated soil revealed a positive climate effect on AMF root colonization and this elicited a significant AMF x climate scenario interaction on root biomass. Whereas the future climate scenario tended to increase root biomass in the noninoculated soil, the inoculated soil revealed a 30% reduction of root biomass under warming at elevated CO2 (albeit not significant). This resulted in a diminished response of Rsoil to simulated climatic change, suggesting that AMF may contribute to an attenuated stimulation of Rsoil in a warmer, high CO2 world.http://dx.doi.org/10.1155/2009/209768 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
S. Vicca C. Zavalloni Y. S. H. Fu L. Voets Hervé Dupré de Boulois S. Declerck R. Ceulemans I. Nijs I. A. Janssens |
spellingShingle |
S. Vicca C. Zavalloni Y. S. H. Fu L. Voets Hervé Dupré de Boulois S. Declerck R. Ceulemans I. Nijs I. A. Janssens Arbuscular Mycorrhizal Fungi May Mitigate the Influence of a Joint Rise of Temperature and Atmospheric CO2 on Soil Respiration in Grasslands International Journal of Ecology |
author_facet |
S. Vicca C. Zavalloni Y. S. H. Fu L. Voets Hervé Dupré de Boulois S. Declerck R. Ceulemans I. Nijs I. A. Janssens |
author_sort |
S. Vicca |
title |
Arbuscular Mycorrhizal Fungi May Mitigate the Influence of a Joint Rise of Temperature and Atmospheric CO2 on Soil Respiration in Grasslands |
title_short |
Arbuscular Mycorrhizal Fungi May Mitigate the Influence of a Joint Rise of Temperature and Atmospheric CO2 on Soil Respiration in Grasslands |
title_full |
Arbuscular Mycorrhizal Fungi May Mitigate the Influence of a Joint Rise of Temperature and Atmospheric CO2 on Soil Respiration in Grasslands |
title_fullStr |
Arbuscular Mycorrhizal Fungi May Mitigate the Influence of a Joint Rise of Temperature and Atmospheric CO2 on Soil Respiration in Grasslands |
title_full_unstemmed |
Arbuscular Mycorrhizal Fungi May Mitigate the Influence of a Joint Rise of Temperature and Atmospheric CO2 on Soil Respiration in Grasslands |
title_sort |
arbuscular mycorrhizal fungi may mitigate the influence of a joint rise of temperature and atmospheric co2 on soil respiration in grasslands |
publisher |
Hindawi Limited |
series |
International Journal of Ecology |
issn |
1687-9708 1687-9716 |
publishDate |
2009-01-01 |
description |
We investigated the effects of mycorrhizal colonization and future climate on roots and soil respiration (Rsoil) in model grassland ecosystems. We exposed artificial grassland communities on pasteurized soil (no living arbuscular mycorrhizal fungi (AMF) present) and on pasteurized soil subsequently inoculated with AMF to ambient conditions and to a combination of elevated CO2 and temperature (future climate scenario). After one growing season, the inoculated soil revealed a positive climate effect on AMF root colonization and this elicited a significant AMF x climate scenario interaction on root biomass. Whereas the future climate scenario tended to increase root biomass in the noninoculated soil, the inoculated soil revealed a 30% reduction of root biomass under warming at elevated CO2 (albeit not significant). This resulted in a diminished response of Rsoil to simulated climatic change, suggesting that AMF may contribute to an attenuated stimulation of Rsoil in a warmer, high CO2 world. |
url |
http://dx.doi.org/10.1155/2009/209768 |
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